CHALLENGE7.2.1: Confidence intervals for population proportions.АCTIVITYCritical values for quick reference during this activity.Confidence level Critical value0.90z* = 1.6450.95z* = 1.9600.99z* = 2.576Jump to level 1A poll for a statewide election has a margin of error of 1.86 percentage points.How many voters should be sampled for a 95% confidence interval? Round up3to the nearest whole number.4.Ex: 1234voters4

Name: CHALLENGE7.2.1: Confidence intervals for population proportions.АCTIV
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: CHALLENGE7.2.1: Confidence intervals for population proportions.АCTIVITYCritical values for quick reference during this activity.Confidence level Critical value0.90z* = 1.6450.95z* = 1.9600.99z* = 2.576Jump to level 1A poll for a statewide election

Answered: Critical values for quick reference…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Topic Video

Question

CHALLENGE
7.2.1: Confidence intervals for population proportions.
АCTIVITY
Critical values for quick reference during this activity.
Confidence level Critical value
0.90
z* = 1.645
0.95
z* = 1.960
0.99
z* = 2.576
Jump to level 1
A poll for a statewide election has a margin of error of 1.86 percentage points.
How many voters should be sampled for a 95% confidence interval? Round up
3
to the nearest whole number.
4.
Ex: 1234
voters
4

Expert Solution

Step 1

Given that the margin of error is 1.86%=0.0186.

Confidence level is 95%

From the given table, the critical value corresponding with 0.95 is 1.96.

Let us consider the population proportion as p=0.5.

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Means$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions